A late Cretaceous 40Ar-39Ar age for the Lappajarvi impact crater, Finland
Item
Title (Dublin Core)
en-US
A late Cretaceous 40Ar-39Ar age for the Lappajarvi impact crater, Finland
Description (Dublin Core)
en-US
We report on a 40Ar — 39Ar study of karnaite from the ⁓ 17 km Lappajarvi impact crater, Finland. Four samples from a 3,000 m profile across the crater center give rather well defined age plateaux and indicate complete degassing at the time of the impact event. The mean age is 77 m.y., much younger than geologically derived age estimates.
ARK: https://n2t.net/ark:/88439/y062490
Permalink: https://geophysicsjournal.com/article/186
ARK: https://n2t.net/ark:/88439/y062490
Permalink: https://geophysicsjournal.com/article/186
Creator (Dublin Core)
Jessberger, E.K.
Reimold, W.U.
Subject (Dublin Core)
en-US
Impact cratering
en-US
40Ar — 39Ar
en-US
Meteorites
en-US
Karnaite
en-US
Rb—Sr dating
en-US
Impact melt
en-US
Rate of impacts
en-US
Chronology
en-US
Melt sheet
en-US
Data
Publisher (Dublin Core)
en-US
Journal of Geophysics
Date (Dublin Core)
1980-03-27
Type (Dublin Core)
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
en-US
Peer-reviewed Article
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
https://journal.geophysicsjournal.com/JofG/article/view/186
Source (Dublin Core)
en-US
Journal of Geophysics; Vol 48 No 1 (1980): Journal of Geophysics; 57-59
2643-2986
2643-9271
Language (Dublin Core)
eng
Relation (Dublin Core)
https://journal.geophysicsjournal.com/JofG/article/view/186/146